Automatic stop for phonographs



AUTOMATIC STOP FOR PHONOGRAPHS.- FILED mlm. 7.1922.

Cil

Patented Mar. 27, 1923.

UNITED STATES AUTOMATIC STOP FOR PEONOGRAPHS.

Application filed March 7, 1922.

To all fui/Lom?? may concern.'

Be it known that I, RAYMOND R.. FOUTE, citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Automatic Stops forPhonographs,'of which the following is a full` clear, concise, and exactdescription.

. My invention relates to those phonographs which employ each a discrecord supporting turn table and a tone arm mounted at one end upononeside of the turn table axis to swing over the turn table andcarryatits other end a transmitter that is provided with a stylus which isengageable with recordl grooves to swing the tone arm andpropagate soundtherethrough. j

The invention has for its object the provision of improved mechanism forstopping the turn table j. and set into operation by the tone arm at theconclusion of a record. In practicing my invention I employ a turn tablestopping` member, a pivoted mounting for this-member that includes atooth thereon which projects toward the axis of this mounting, a pivoteddetent having a nose between the tooth and axis of said mounting andwhich is engageable with said tooth to position said mounting to holdthe turn table stopping member ineffective, there being an abutmentagainst which the vdetent is held when yin released position, and

spring means operating upon said mounting and the detent and vserving topress the detent nose away from the axis of said mounting and alsoserving to turn the said mounting to make said turn table stoppingmember effective when the detent is released, said detent and tone armbeing engageable upon the inward record veifected movement of the tonearm in a direction to release the detent to render the turn tablestopping member effective, they portions of the tone arm and detentstructures that are engageable being relatively adjustable to determinethe place in the inward record effected movement of the tone arm atwhich the detent is to be released.

My invention has been embodied in that class of phonographs employingturn tables that areprovided with rims and braking members that arevapplicable to said rims. A phonograph of' this class, in accordancewith my invention, has its braking member` mounted upon the pivotedmounting of my invention.

Serial No. 541,762.

I will explainmy invention more fully by reference to the accompanyingdrawing inwhich Fig. lv illustrates the preferred embodiment thereof inconnection with a pho-nographwhose turn table has a rim and,eeay,.rricve.; i f

RAYMOND R.' FOUTE, OF CHICAGO, ILLINOIS.

a braking member engaigeabile with said i rim, parts being broken awayto revleal characteristics of construction, the braking member beingunapplied to the turn table rim; Fig. 2 is a vie-w of part of thestructure shown in Fig. l illustrating the brake member applied to theturntable rim ,-Fig. 3 is al sectional. view on line. B-Bof Fig. 2;,andFig. 4 is a sectional View on line 4 4 of Fig. 2.

Like parts are indicatedby similar characters of reference throughoutthe ldifferent gures.

An upright shaft or spindle 2 extends through the mounting boardand isturned by the motor at a set speed maintained. substantially constant byany usual or suitable governor. The record supporting turn table 4- iscarried upon the spindle 2 andl rotates therewith. This turn tablesupports a disc record 5 having recording grooves therein f whichcommence at the periphery of they disc and terminate at the innerportion yof therecord. The tone varm 6 is mounted at one end upon oneside of-theturn table axis to swing over the turn table 4.. .This tonearm supports a transmitting sound box 7 which carries a stylus 8 that isengageable with the Agrooves in the record 5f whereby thetone arm isswung toward the center of the record as such record is beingyreproduced while the sound transmitter is propagating sound through thetone arm.A i i The rim 9 of the vturn tableconstitutes one element ofa-fbraking mechanism, the

com lemental braking member bein@ referv ably in the form of. acylindrical pad l0. The braking member l0'A is supported upon a mounting1l which is pivoted at l2 upon a mounting plate. 13 that isrsecured.in-place upon thev mounting board of the phonograph by means of screws1-4. Theqpivoted mounting has a toothl5 formed: thereon which projectstowardfthe axis, of the brake member mounting. 1.1. This mounting.. is

provided withV a surface at 16 onA one'vside of the tooth, this surfacebeing. substantially concentric with the axis-of the mounting andconstituting an abutment serving the purpose hereinafter, tobe stated.TheV poreen of the mounting. ii ftp-oja tht-.tasa Siae of the tooth andadjacent thereto is spaced apart from the axis of the mounting a radialdistance substantially equal to the radial distance of the surface 16. Adetent 17 is pivoted at 18 upon the mounting board. This detent has anose 19 that is between the tooth and the axis of the brake membermounting 11, this nose being engageable with the side of the tooth thatis nearest the ivot 18 to hold the mounting in a position in which thebrake is released from engagement with the turn table rim. lVhen thisnose is disengaged from this tooth the mounting 11 may be adjusted tobring the brake member 10 in engagement with the rim of the turn tableto stop its rotation.

A coiled spring 2O connects the mounting 11 and the detent 17 and servesto press the detent nose away from the axis of the brake member mountingand also serves to turn the brake member mounting in a direction toapply the brake member to the turn table rim when thee tent is released,said detent and tone arm eing in engagement upon the inward recordeffected movement of the tone arm at the conclusion of a record in adirection to oppose the action of the spring to move the nose of thedetent outof engagement with the tooth 15 upon the brake member mountingto permit the spring 20 to turn the mounting 11 to apply the brakemember 10 against the turn table rim. The means for engaging the tonearm and the detent desirably resides in a post 21 carried by anddepending from the tone arm and an arm 22 hinged at 23 to the detent andadapted to be held in positions to which it is adjusted by means of aspring washer 24 and a disc of friction producing material 25 such asfelt or paper, a screw 26 regulating the friction which occurs at thejoint between the arm 22 and the detent. 1n order to adjust the turntalble stopping mechanism the stylus is swung inwardly a hallc inch orso beyond the termination of the record and is then swung back with thestylus upon the concluding line of the record whereafter the arm 22 isswung until it engages the post 21. After this adjustment has beeneffected the phonograph may be started, the tone arm being now adjustedto have its stylus 8 at the commencement of the record. 1When the stylusagain reaches the concluding line of the record the stop 21 will impingeupon the arm 22 to release the detent from the tooth 15 whereupon thespring 20 will swing the brake member mounting 11 in a direction toapply the brake member 10 to the rim of the turn table. The surface 16holds the detent nose stationary when released and while the mechanismis being set. Y

The advantages of the stopping mechanism of my invention wil be readilyunlarly described the preferred embodiment of my invention I do not wishto be limited to the precise details of construction shown as changesmay readily be made without departing from the spirit of my inventionbut having thus described my invention I claim as new and desire tosecure by Letters Patent the following:

1. A phonograph including a disc record supporting turn table having adepending rim; a tone arm mounted at one end upon one side of the turntable axis to swing over the turn table and carrying at its other end atransmitter that is provided with a stylus which is engageable withrecord grooves to swing the tone arm and propagate sound therethrough;braking mechanism for checking the rotation of said turn table andhaving said turn table rim as one of its elements, the complementalelement of' the braking mechanism including a brake member applicable tosaid turn table rim, and a pivoted mounting for this brake member thatincludes a tooth thereon which projects toward the axis of this brakemember mounting and which mounting is provided with a surface on oneside of said tooth that is substantially concentric with the' axis ofthe mounting, the portion of the mounting upon the other side of saidtooth and adjacent thereto being spaced apart from the axis of themounting a radial dista-nce substantially equal to the radial distanceof said surface; a pivoted detent having ai nose between the tooth andaxis of the brake member mounting and which is engageable with saidtooth upon the side thereof remote from the aforesaid surface that issubstantially concentric with the axis of the brake member mounting tohold the brake member out of engagement with the turn table rim andwhich nose is also engageable with this surface when the detent isreleased to permit the application of the brake member to the turn tablerim, and a spring connecting the brake member mounting and the detentand serving to press the detent nose away from the of the brake membermounting and also serving to turn the brake member n'iounting in adirection to apply the brake member to the turn table rim when thedetent is released. said detent and tone arm being engageable upon theinward record effected movement of the tone arm in a direction too-ppose the action of said spring to move the nose of the detent out ofengagement with the tooth upon the brake member mounting and permitapplication of the brake member to the turn table rim by said spring-theportions of the tone arm and detent structures that are engageable beingrelatively adjustable `to determine the place in the inward recordeffected movement of the tone armv at which the detent is to bereleased.V

2. A phonograph including a disc'record supporting turn table; a tonearm mounted lat one end upon one side of the turn table axis to swingover the turn table and carrying at its other end a transmitter that isprovided with a styluswhich is engageable with record grooves to swingthe tone arm and propagate sound therethrough; braking mechanism forchecking thev rotation of said turn table and having a brake memberapplicable to said turn table and a pivoted vmounting for thisbrakemember that inytooth and axis of the brake member mounting andwhich is engageable with'said tooth upon the side thereof remote fromkthe aforesaid surface that is substantially concentric with the axis ofthe brake member mounting to hold the brake member out of engagementwith the turn table and which nose is also engageable with thissurfacewhen the detentis released to permit the application of the brake memberto the turn table; and a spring connecting the bra-ke member mountingand the detent and serving to press the detent nose away from the axisof the brake member mounting and also serving to turn the brake membermounting in a direcv' tion to apply the brake member to the turn tablewhen the. detent is released, said detent and tone arm being engageableupon the inward record efected movement of the tone arm in a directionto oppose the actionA of j said spring to move the `nose ofthe detentout of engagement with the tooth upon the brake member mounting andpermit application of the brake member to the turn table by said spring,the portions of the tone arm and detent structures that are engageablebeing relatively adjustable to determine the placevin the inward recordeffected movement of the tone arm at which the detent is to be released.

v 3. A phonograph.including a disc record supporting turn table having adepending rim; a tone arm mounted at one end upon one side of ltheturntable axis to swing over the turn table and carrying at its otherend F a .transmitter that is provided with a. stylus which is engageablevwith recordgrooves to swing the tonev arm and propagate soundtherethrough; braking mechanism for checking the rotation oi' saidturntable and having said turn table rim as one of its elements, thecomplemental element of the braking mechanism including a brake memberapplicable to said turntable rim, and a pivoted mounting for this brakemember that includes a tooth thereon which projects toward the axisof'tliis brake mem- `l ber mountingan'd which mounting is provided witha surface on one side of said` tooth that is substantially concentricwith i.

.the axis of .the mounting, the portiony of the mounting upon the otherside of said tooth and adjacent vthereto Vbeing spaced apart from theaxis of the ,mounting aradial distance substantially equal to therradial distance of saidl surface; a pivoted detent having a nose betweenthe tooth. and

axis of the brake member mounting; and which is engageable with saidtooth upon the side thereof remote from the aforesaid surface that issubstantially concentric with the axis of the brake member mounting tohold the brake member out of engagement with the t-urn table rimandi'which nose is 'also engageable with this surface when .the

detent is released to permit the application of the brake member to theturnv table rim; and spring means operating upon the lbrake membermounting and the 'detent and serving to press the detent nose away fromthe axis of the brake member mounting and also serving to turn thebra-ke member moimting in a direction. to apply the brake member to theturn table rim when the detent is released; said detent and tone armbeingr engageable upon the inward record effected Amovement of the tonearm yin a direction to release the detentto permit application 'of thebrake member, the portions of the tone arm and detent structures thatare engageable being relatively adjustable t determine .the place in theinward record effected movement ofthe tone arm at .which thedetent is tobe released.

at one end upon one side of the turn table 4. A phonograph including adisc recordy supporting turn table; a tone arm mounted H axis toswingo-ver the turn table and carry-v ing at its other end a transmitterthat is p-rovidedwith a stylus which is engageable with reco-rd groovesto swing the tone arm and propagate .sound therethrough; brakingmechanism for checking the rotation of said Y turn tablel and having abrake cable to. said turn table', mounting for this brake. member thatincludes atooth thereon 'which projects toward theaxis of thisbrakemember mounting and which mountingisprovided with member appliasurface onA one side of .said toothfthat isy ysubstantially concentricwith the axis ott and a pivotedl vbetween the tooth Vand axis of thebrake memberl ulounting and which is engageable with said tooth upon theside thereof` remote from the aforesaid surface that is substantiallyconcentric with the axis of the brake member mounting to hold the brakemember out of engagement with the turn table and which nose is alsoengageable with this surface when the detent is releasedto permit theapplication of the brake member to the turn table; and spring meansoperating upon the brake member mounting and the detent and serving topress the detent nose awayv from the axis of the brake member mounting'and also serving to turn the brake member mounting in a direction toapply the brake member to the turn table when the detent is released,said detent and tone arm being engageable upon the inward recordeffected movement of the tone arm in a direction to rele-ase the detentto permit application of the brake member. the portions of the tone armand detent structures' that are engageable being relatively adjustableto determine the place in the inward record effected movement of thetone arm at which the detent is to be released.

5. A phonograph including a. dise record supporting turn table; a tonearm mounted at one end upon one side of the turn table axis to swingover the turn table and carrying at its other end a transmitter that isprovided with a st vlus which is engageable 'ith record grooves to swingthe tone arm and propagate sound therethrough; a turn table stoppingmember; a pivoted mounting for this member that includes a tooth thereonwhich projects toward the axis of this mounting'and which mounting isprovided with a surface on one side of said tooth that is substantiallyconcentric with the axis of t-he mounting, the portion of the mountingupon the other side of said tooth and adjacent thereto being spacedapart from the axis of the mounting a ra dial distance substantiallyequal to the radial distance of said surface; a pivoted 'detent having anose between the tooth and axis of said mounting and which is engageablewith said tooth upon the side thereof remote from the aforesaid surfacethat is substantially concentric with the axis of said mount-ing` tohold the turn table stopping member ineffective and which nose is alsoengageable 'with this surface when the detent is released to maketheturn table stopping member effective; and a spring connecting saidmounting and the detent and serving to press the detent nose away fromthe axis of said mounting and also serving to turn the said mounting tomake said turn table stopping member effective when the detent isreleased, said detent and tone arm being with the tooth upon saidmounting to render i the turn table stopping member effective, theportions of the tone arm and detent structures that are engageable beingrelatively adjustable to determine the place in the inward recordeffected movement of the tone arm at which the detent is to be released.

6. A phonograph including a disc record supporting turn table; atone/arm mounted at one end upon one side of the turn table axis toswing over the turn table and carrying at its other end a transmitterthat is provided with a stylus which is engageable with record groovesto swing the tone arm and propagate sound therethrough; a turn tablestopping member; a pivoted mounting for this member that includes atooth thereon which projects toward the axis of this mounting and whichmounting is provided with a surface on one side of said tooth that issubstantially concentric with the axis of the mounting, the portion ofthe mounting upon the other side of said tooth and adjacent theretobeing spaced apart from the axis of the mounting a radial distancesubstantially equal to the radial distance of said surface' a pivoteddetent having a nose between the tooth and axis of said mounting andwhich is engageable with said tooth upon the side thereof remote fromthe aforesaid surface that is substantially concentric with the axis ofsaid mounting to hold the turn table stopping member ineffective andwhich nose is also engageable with this surface when the` detent isreleased to make the turn table stopping member' effective; and springmeans operating upon said mounting and the detent and serving to pressthe detent noseaway from the axis of said mounting and also serving toturn the said mounting to make said turn table .stopping membereffective when the detent is released, said detent and tone arm beingengageable upon the inward record effected movement of the tone arm in adirection to release the detent to render the turn table stopping membereffective, the portions of the tone arm and detent structures that areengageable being relatively adjustable to determine the place in .theinward record effected movementof the tone arm at which the detent is tobe released.

7. A phonograph including a disc record supporting turn table; a tonearm mounted at one end upon one side of the turn table axis to swingover the turn table and carrying at its other end a transmitter thatisprovided with a stylus which is engageable with record grooves to swingthe tone arm and propagate soundl therethrough; braking mechanism forchecking the rotationl of said turn table and having a brake memberapplicable to said turn table, anda pivoted mounting for .this brakemember that includes a tooth thereon which projects toward the axis ofthis brake member mounting and which mounting is provided with a surfaceon one side of said tooth that is substantially concentric with the axisof the mounting; a pivoted detent having a nose between the tooth andaxis and axis of the brake member mounting and which is engageable withsaid tooth upon the side thereof remote from the aforesaid surface thatis substantially concentric with the axis of the brake member mountingto hold the brake member out of engagement with the turn table and whichnose is also engageable with this surface when the detent is released topermit the application of the brake member to the turn table; and springmeans operating upon the brake member mounting and the detent andserving to press the detent nose away from the axis of the brake membermounting and also serving to turn the brake member mounting in adirection to apply the `brake member to the turn table when the detentis released, said detent and tone arm being engageable upon the inwardrecord elfected movement of the tone arm inra direction to release thedetent to permit application of the brake member, the portions of thetone arm and detent structures that are engageable being relativelyadjustable to determine the place in the inward record eected movementof the tone arm at which the detent is to be released. n

8. A phonograph including a disc record supporting turn table; a tonearm mounted at one end upon one side of the turn table axis to swingover the turn table and carrying at its other end a transmitter that isprovided with a stylus which is engageable with record grooves to swingthe tone arm and propagate sound therethrough; a turn table stoppingmember; a pivoted mounting for this member that includes a tooththereonwhich projects toward the axis of this mounting and which mounting isprovided with a surface on one side of said tooth that is substantiallyconcentric with the axis of the mounting; a pivoted detent having a nosebetween the tooth and axis of said mounting and which is engageable withsaid tooth upon the side thereof remote from the aforesaid surface thatis substantially concentric with the axis of said mounting to hold theturn table stopping member ineffective and which nose is also engageablewith this surface when the detent is released to make the abutment turntable `stopping member effective; andl Spring means operating uponl saidmounting and thedetent 'and 'serving to press thel detent nose away fromthe axis of said mounting and also serving to turn vthe said mounting tomake said turn table stopping mem-k Y relatively adjustable to determinethe place in the inward record effected movement of the tone arm atwhich the detent is to be released.

9. A phonograph including a disc record i supporting turn table; va tonearm mounted at one endrupon one side of the turn table axis to swingover the turn table and carrying at its other end a transmitter that isprovided with a stylus which is engageable withl record grooves to swingthe tone arm and propagate sound therethrough; ybraking mechanism forchecking the rotation of said turn table and having a brake memberapplicable to said turn table, and a pivoted mounting' for this brakemember that inchicles a tooth thereon whichv projects toward the axis ofthis brake member mounting; a pivoted detent having anose between thetooth and axis of the brake member mounting and which is engageable withsaid tooth to lposition the brake member mounting to hold the brakemember out of engagement with the turn table, there beingan againstwhich the -detent is held when in released position; and spring meansoperating upon the brakemember mounting and the'detent and serving topress the detent nose away from the axis of the bra-ke membermountingand also serving to turn the brake member mounting in a`direction to apply the brake member tothe turn table when the detent isreleased7 said detent and tone arm being engageable upon the inwardrecord eected movement of the'tone arm in a direction to release-thedetent to permit application of the brakemember, the por-- tions of thetone arm and detent structures that are engageable being relativelyadjustable to determine the place in the inward which the detent is tobe released.

j l0. A phonograph including a disc record supporting turn table; a tonearm mounted at oneend upon one side of the turn table axis to swing overthe turn table and carrying at its other end a transmitter that isprovided with a stylus which is engageable with record grooves to swingthe tone arm and propaga-.te sound therethrough; a turn table stoppingmember; a pivoted mounting for this memberl that includes a tooththereon Y record effected movement of the tone arm atj which projectstoward the axis of this mounting; a pivoted detent having a nose betweenthe tooth and axis of said mount-- ing` and which is engageable withsaid tooth to position said mounting to hold the turn table stoppingmember ineffective, there be detent and tone arlh being engageable uponthe inward record effected movement of the tone arm in a direction torelease the detent to render the turn table stopping member effective7the portions of the tone arm and detent structures that are engageablebeing relatively adjustable to determine the place in the inward recordeffected movement of the tone arm at which the detent is to be releasedQIn Witness whereof7 'I hereunto subscribe my name this 18th day ofFebruary, A. D. 1922.

RAYMQND R. FOUTE..

